Liquid-measuring apparatus.



R. T. C. BAIN & G. W. MACKENZIE, JR.

- LIQUID MEASUHIN'GAPPARATUS. APPLICATION FILED OCT. 10, 1916.

1,255,576. V Patented Feb. 5,1918.

2 SHEETS-SHEET I.

15 X I Fllll- R. T. 0. am a s. w. MACKENZIE, JR.

LIQUID MEASURING APPARATUS. APPLICATION FILED 0CT.10. 1916.

0G 1 9 1 5 F d L T E E H J S T E F. H 3 2 lmllh lllllll INVENTOFI5WITNESSES UNITED sTATEs PAT NT OEEIOE.

ROBERT T. c. RAIN, OE :eITTsEuRGH, AND GEORGE W. MAcKE-NZIE, JR., 0]?ROOnEsTER, PENNSYLVANIA, AssIG ORs 'I'O GUARANTEE LIQUID MEAsURECOMPANY, or RocHEsTER, PENNSYLVANIA, A cORPORATION OF DELAWARE.

LIQUID-MEASURING APPARATUS.

To all whom it may concern:

Be it known that we, ROBERT T. C. BAIN and GEORGE W. MACKENZIE, Jr.,citizens of the United States, residing at Pittsburgh and Rochester,respectively, in the counties of Allegheny and Beaver, respectively, andState of Pennsylvania, have invented certain new and useful Improvementsin Liquid-Measuring Apparatus, of which the following is aspecification.

Our invention consists of an improvement in apparatus for deliveringgasolene or other liquids in measured quantities from a measuring orsecondary tank connected w1th a main reservoir at any suitable location,adapted to receive fluid from the main reservoir and to measure theamount to be delivered from the secondary tank to a purchaser or user,as indicated by graduated levels.

The invention is of the same general class as that disclosed in theapplication of Mac- Kenzie at aZ., Serial NO. 33897.

The improvement comprised in the present application is in the meansproviding a zero level for the asolene or other liquid which shall bevisible and will definitely show at all times the point or level fromwhich the contents of the secondary or measuring tank are graduatedupwardly.

A further object and advantage is to provide for a more rapid deliveryof the measured quantity of fluid, and also in providing a settlingspace for water, sediment, or impurities of any kind in the fluid, asgasolene, to settle down into the bottom of the measurin tank,constituting an inactive body portion thereof,

Referring to the drawings illustrating the invention,

Figure 1 is a general view in elevation, showing the several parts inoperative relation.

Fig. 2 is an enlarged sectional detail view, illustrating theimprovement.

Referring to Fig. 1, the primary or stor age tank or reservoir 2 isprovided with any suitable filling pipe 3 having a funnel 4. and ashut-ofl cock or valve 5. A. relief pipe 6 for admitting and dischargingatmospheric Specification of Letters Patent.

drical shell 7,

Patented Feb. 5, 1918.

Application filed October 10, 1916. Serial No. 124,869.

air'is preferably connected with the upper portion of the tank2, and mayextend to any suitable point thereabove.

The secondary or measuring tank A, which may be of any suitableconstruction, is located at any desired elevation above the primary tankfor delivering fluid to a customer or user through a pipe 8, having .acontrolling valve 9, and a delivery hose extension 8.

Ordinarily, atmospheric pressure. will be restored within tank A upontermination of the air exhausting operation hereinafter described, butfor the purpose of positively admitting air, a pipe 9" is connected withthe llltGl'lOl of the tank at the top, so as to admit air therein by asuitable connection to the atmosphere through valve 9, prior to the timethat conduits 8 and 8 are used for drawing oil the contents.

The closing of valve 9 closes air communication to the interior ofthesecondary tank, so as to facilitate the exhaustion of air therefromto effect filling from the main tank 2.

An outer pipe 10 leads from the bottom portion of the measuring tank Ato the lower portion of reservoir 2, so as to insure exhausting thecontents therefrom, and is in communication with the interior of themeasuring tank A through the central vertically adjustable tube 23adapted to be set at any desired level by the operator.

The secondary or measuring tank A in the present construction consistsof a cylinpreferably of glass or other transparent material, clampedbetween a base 13 and a top 13 by means of a series of rods 13 and anysuitable intervening packing material, whereby to provide an air-tightchamber. The advantage in having the body portion 7 of glass is toinsure visibility of the contents.

For the purpose of creating a partial vacuum in the tank A, any suitableair-exhausting means may be employed, as a siphon or injector 14 ofsuitable construction connected with any source of fluid under pressure,as by pipe 15 having a controlling valve 16 connected to an ordinaryWater supply means or system, and having a waste pipe 17 leading to anypoint of d1scharge.

A suction pipe 18 is connected with the upper end of tank A, preferablyby an upper extension 18 which may, if desired, extend to a sufficientheight to be beyond the range of the ultimate possible rise of the fluidupwardly above tank A.

When air is exhausted from theinterior of tank A, liquid will rise fromthe main reservoir 2 through pipe 10 and telescoping conduit 23 and willfill the tank A more or less, during continuance of the flow. Ifdesired, the tank A may be filled by gravity from any superimposedstorage tank, or from any other source of supply connected with pipe 10.

Also, in such case, it not being necessary to depend on the creation ofa partial vacuum within tank A, the top may be left open.

The conduit 23 is adapted to be partially rotated by means of anoperating trigger or handle 30, which extends outwardly through avertical slot 10 in conduit 10, having at predetermined positionsoff-set slots or arresting openings 10.

Conduit 23 has a sliding but fluid tight sealing engagement with theconduit 10 by means of a packed head 24, providin for ample verticalmovement of the condu1t23,

but preventing flow of the liquid from tank A into the vconduit 10,otherwise than through the conduit 23, which is preferably provided witha splash coping 31 by which the upwardly'rising fluid is directeddownwardly into the tank.

The conduit 23 has a piston shaped head 23 formed on its lower end. Thehead 23' is adapted to prevent liquid flowing upwardly beyond said headwithin the conduit 10.

Locking apertures 10 are positioned at intervals above the bottom ofslot 10, corresponding to any desired unit of measurement, as, forinstance, one gallon, so that when arm 30 is thrown around into registerwith Vertical slot 10 the conduit 23 may be raised or lowered to anydesired position, as,

for instance, to the 6th socket, (corresponding to a five-gallonmeasurement), and the top of the conduit will then be in position tolimit the return flow to such level.

Then, by exhausting the air from the interior of tank A by the mechanismabove described, fluid will rise through conduit 23, and into the tankto or above the level of the upper. end of the conduit. The vacuumcreating suction is then terminated, reestablishing normal atmosphericconditions within the tank, and permitting any surplus to be returned tothe main reservoir 2 by overflow back through conduits 23 and 10.

The tank thus being filled to the desired capacity, corresponding to theamount to be drawn off, whereupon, by manipulation of valve lever 9,additional air is admitted into the upper portion of tank A, and thecontents are drawn ofi through pipe 8, as will be clearly understood.

Should it be desired, however, to return all or any portion of thecontents of the tank to the main reservoir, this may be done by merelylowering conduit 23 to bring its top level with the bottom of the tank,or to any point down'to which the contents are to be drawn ofl' andreturned to the main tank, before the desired measured amount isdelivered to the purchaser.

For the purpose of providing indicating marks for the difl'erent levelswithin tank A, corresponding to the unitary divisions usually utilizedin measuring liquids, and

corresponding to any definite unit of meas-' urement, as one galloneach, I provide the several levels aa, 6-6, 00, d-ci, ee, and /''-,f,and fix upon the face of the glass cylinder 7 corresponding indicatingnu-' see the bottom level from which the liquid.

is accumulated upwardly within the measuring tank, the withdrawal pipe 8is projected upwardly within the bottom portion of the tank to adistance corresponding to, and necessarily defining, the zero level aa.By so projecting the inlet end of the withdrawal pipe upwardly to suchpoint, it becomes impossible to reduce the level of the contained liquidbelow such zero point, so that the refilling of the measuring tank willalways be in addition to such contents, and above the zero level. v

This zero level is purposely placed sufiiciently high above'the baseportion of the measuring tank so as to render it visible at all times,and the contents below such level can only be withdrawn by loweringconduit 23 below the zero level.

The base 13, as shown, is purposely dished downwardly to facilitate themaintenance of a lower, inactive or dormant body of liquid, which thusoperates as a collecting and settling reservoir, thus insuring thepurity of the superimposed contents.

By fixing the outflow terminal of withdrawal pipe '8 upwardly above thebottom of the tank, and at a level coincident with bottom or side of theholding vessel.

the liquid are withdrawn from the extra mlie e outflow is thuscontinuous] regular and rapid to itsend and prompt y discontinues at thelowermost level, thus saving time to the user and operator.

The advanta es of the above described improvement wil be understood andappreciated by all those familiar with this type of mechanism. Itassures and satisfies the customer as to the correctness of the measuredamount, and possesses the several advanta es and features above noted,which contu ute to the satisfactory operation of the machine.

Having described the invention, what we claim is:

1. In combination with a transparent measuring tank having a series oflevel-indicating marks successively arranged upwardly beyond an initiallevel which is materially above the bottom of the tank; a deliveryconduit extending within the measuring tank up to such initial level,and an adjustable supply and return pipe extending upwardly within saidtank.

4 2. In combination with a transparent measuring tank having a series oflevel-indicating marks succesively arranged up-' wardly be end aninitial level which is materially aliove the bottom of the tank; adelivery conduit extending within the measuringjank up to such initiallevel, a vertically adjustable supply and return pipe extending upwardlywithin the tank and 5 .adapted to be located with its u per terminalcoincident with either of sai level-indicating marks, and means forcausing a flow of liquid through said pipe.

3. In combination. with a transparent 4 measuring tank having a seriesof level-indicating marks successively" arranged upwardly beyond aninitial level which is materially above the bottom of the tank; adelivery conduit extending within the meas- 5 urin tank up to suchinitial level, a vertical y adjustable supply and return pipe extendingupwardly within said tank and adapted to be located with its upperterminal coincident with either of said levelindicating marks, and asplash co ing on the upper end of said pipe adapte to direct fluidflowing therethrough in a downwardly direction.

In testimony our signatures.

ROBERT T. C. BAIN. GEORGE W. MACKENZIE, Jn.

whereof we hereunto afiix 5 It is hereby certified that. the name of thefirst-mentioned patentee in Letters Patent No. 1,255,576, grantedFebruary 5, 1918, for an improvement in Liquid- Measuring Apparatus,"was erroneously written and printed Robert. T. C. Bain wheres-s saidname should have been written and printed Robert F. O. Bae'n; and thatthe said Letters Patent should be reaii with this correction thereinthat the same may conform to the record of the case in the PatentOflice.

Signed and sealed this 23d day of April, A. D., 1918.

[shun] F. W. H. CLAY,

Acting Commissioner of PM. Cl. 221-100.

